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LM337KTER Scheda tecnica(PDF) 3 Page - Texas Instruments |
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LM337KTER Scheda tecnica(HTML) 3 Page - Texas Instruments |
3 / 10 page LM237, LM337 3-TERMINAL ADJUSTABLE REGULATORS SLVS047G – NOVEMBER 1981 – REVISED SEPTEMBER 2003 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended ranges of operating virtual junction temperature (unless otherwise noted) PARAMETER TEST CONDITIONS† LM237 LM337 UNIT PARAMETER TEST CONDITIONS† MIN TYP MAX MIN TYP MAX UNIT Input regulation‡ VI – VO = –3 V to –40 V TJ = 25°C 0.01 0.02 0.01 0.04 %/V Input regulation‡ VI – VO = –3 V to –40 V TJ = MIN to MAX 0.02 0.05 0.02 0.07 %/V Ripple rejection VO = –10 V, f = 120 HZ 60 60 dB Ripple rejection VO = –10 V, f = 120 HZ, CADJ = 10 µF 66 77 66 77 dB Output regulation IO = 10 mA to 1.5 A, |VO| ≤ 5 V 25 50 mV Output regulation IO = 10 mA to 1.5 A, TJ = 25°C |VO| ≥ 5 V 0.3% 0.5% 0.3% 1% Output regulation IO = 10 mA to 1.5 A |VO| ≤ 5 V 50 70 mV IO = 10 mA to 1.5 A |VO| ≥ 5 V 1% 1.5% Output-voltage change with temperature TJ = MIN to MAX 0.6% 0.6% Output-voltage long-term drift After 1000 h at TJ = MAX and VI – VO = –40 V 0.3% 1% 0.3% 1% Output noise voltage f = 10 HZ to 10 kHZ, TJ = 25°C 0.003% 0.003% Minimum output current to maintain |VI – VO| ≤ 40 V 2.5 5 2.5 10 mA current to maintain regulation |VI – VO| ≤ 10 V 1.2 3 1.5 6 mA Peak output current |VI – VO| ≤ 15 V 1.5 2.2 1.5 2.2 A Peak output current |VI – VO| ≤ 40 V, TJ = 25°C 0.24 0.4 0.15 0.4 A Adjustment-terminal current 65 100 65 100 µA Change in adjustment-terminal current VI – VO = – 2.5 V to –40 V, IO = 10 mA to MAX TJ = 25°C, 2 5 2 5 µA Reference voltage VI – VO = – 3 V to –40 V, IO = 10 mA to 1.5 A, TJ = 25°C –1.225 –1.25 –1.275 –1.213 –1.25 –1.287 V Reference voltage (output to ADJ) IO = 10 mA to 1.5 A, P ≤ rated dissipation TJ = MIN to MAX –1.2 –1.25 –1.3 –1.2 –1.25 –1.3 V Thermal regulation Initial TJ = 25°C, 10-ms pulse 0.002 0.02 0.003 0.04 %/W † Unless otherwise noted, these specifications apply for the following test conditions |VI – VO| = 5 V and IO = 0.5 A. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. All characteristics are measured with a 0.1- µF capacitor across the input and a 1- µF capacitor across the output. Pulse-testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. ‡ Input regulation is expressed here as the percentage change in output voltage per 1-V change at the input. |
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